Vibration detector



FIG. 1 is a top view of a vibration detector.

FIG. 2 is a front view thereof.

FIG. 3 is a bottom view thereof.

FIG. 4 is a back view thereof.

FIG. 5 is a right side view thereof.

FIG. 6 is a left side view thereof.

FIG. 7 is a first perspective view thereof; and,

FIG. 8 is a second perspective view thereof.

The broken lines form no part of the claimed design.

The broken line showing of structural features is included for the purpose of illustrating non-claimed subject matter and forms no part of the claimed design. 

The ornamental design for a vibration detector, as shown and described. 